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Novel safety gear and elevator falling-preventing device

A safety gear and anti-falling technology, which is applied in the field of elevator safety devices, can solve problems such as damage to the surface of the guide rail, decrease in safety performance, and reduce the braking force of the safety gear, so as to reduce the possibility of injury, improve safety, and reduce installation and maintenance. cost effect

Active Publication Date: 2016-08-17
黄韩华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. Every time the safety gear moves, it will have an impact on the guide rail, guide rail bracket, and well wall, which may cause the guide rail bracket to loosen and fall off, resulting in a decrease in safety performance
[0006] 4. Every time the safety gear moves, it will damage the surface of the guide rail, and it is often necessary to repair the surface of the guide rail;
[0007] 5. The guide rails that have been ground and repaired will reduce the braking force when the safety gear is in action, resulting in an increase in the braking distance
[0008] The existence of these problems shows that there are certain safety hazards in the current elevator fall prevention device, and it will inevitably increase the installation and maintenance cost of the elevator.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to figure 2 As shown, a new type of safety gear 1 according to the present invention includes a pliers body 11 and two wedges 12 respectively slidably mounted on the pliers body 11. A pair of opposite upper guide wheels 13 are provided on the upper part of the pliers body 11. The pliers body The bottom of 11 is provided with a pair of opposite lower guide wheels 14. The two upper guide wheels 13 are located on the same plane, the two lower guide wheels 14 are located on the same plane, and the two planes are parallel / coincident. The midline of the gap between the two upper guide wheels 13, the midline of the gap between the two lower guide wheels 14 and the midline of the gap between the two wedges 12 coincide; the gap between the two wedges 12 is larger than the two upper guides. The gap between wheel 13 / two lower guide wheels. As another embodiment, the three centerlines are located on the same plane, and the plane where the three centerlines are located is p...

Embodiment 2

[0049] refer to Figure 1 to Figure 3 As shown, an elevator anti-fall device includes two sets of first anti-fall components, and an upper beam 6 and a lower beam 7 in the elevator shaft. The first anti-drop assembly is arranged on both sides of the elevator car.

[0050] The first anti-drop assembly includes a flexible component 2 and the new safety gear 1 in Embodiment 1.

[0051] The flexible member 2 is a long piece, the two ends of the flexible member 2 are respectively fixed on the upper beam 6 and the lower beam 7 of the elevator structure and the flexible member 2 is parallel to the guide rail of the elevator car 8 . Novel safety gear 1 is fixedly installed on the outside of the elevator car body and clamped on the flexible member 2, and the upper guide wheel 13 and the lower guide wheel 14 are all in contact with the flexible member 2. The flexible member 2 is a steel wire rope or a steel belt or other flexible ropes or belts with sufficient strength.

[0052]The u...

Embodiment 3

[0069] refer to Figure 4 As shown, the structure of the elevator fall prevention device described in this embodiment is to increase the following structure on the basis of Embodiment 2: it also includes the guide rail 101 of the elevator car and the flexible member 2 for matching with the guide rail 101; The two ends slide respectively on the upper beam 6 and the lower beam 7 of the elevator shaft. One of the feasible specific installation methods of the guide rail 101 is as follows (the installation method of the upper end of the guide rail 101 is the same as that of the lower end): Taking the installation of the upper end of the guide rail 101 as an example, The upper beam 6 is provided with an installation opening, and a guide rod 102 is movable through the installation opening, and the lower end of the guide rod is fixedly connected with the upper end of the guide rail 101 . The flexible member 2 is a long piece; the two ends of the flexible member 2 are fixed on the uppe...

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Abstract

The invention provides a novel safety gear and an elevator falling-preventing device. According to the novel safety gear, upper and lower guide wheels are additionally arranged in an existing safety gear structure, and therefore safety gear misoperation is avoided during normal elevator operation. The elevator falling-preventing device comprises a first flexible component and the novel safety gear which are combined for use or further comprises a guide rail and a second flexible component which are installed in a matched mode. By means of the structure, elevator safety is improved, impact force of the safety gear acting process on a car, the guide rail, a guide rail support and a well enclosure is lowered, the elevator car is directly hung on an upper beam through a flexible force bearing component after being stopped, the hidden danger that the guide rail, the guide rail support and the well enclosure are loosened and disengaged is eliminated, the possibility that elevator passengers are injured is greatly lowered, and the installation and maintenance cost is reduced.

Description

technical field [0001] The invention relates to a safety device for an elevator, in particular to a novel safety gear and an elevator anti-falling device. Background technique [0002] The elevator fall prevention device is an indispensable safety device for elevators, mainly used to prevent the elevator car from falling out of control and falling from broken ropes. The existing elevator fall prevention device consists of a safety gear assembly, a safety gear lifting linkage mechanism, a speed limiter device, and an elevator car guide rail. When the elevator fall prevention device operates, the safety gear installed on the elevator car stops the elevator car on the guide rail, so there are the following problems: [0003] 1. Because the guide rail is rigid, the safety gear will generate a large impact force when it moves, which may cause injury to the elevator passengers; [0004] 2. Because the elevator car is directly stopped on the guide rail, it is required that the gu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/22B66B5/04
CPCB66B5/04B66B5/22
Inventor 黄韩华
Owner 黄韩华
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